DLMF:6.6.E4 (Q2251)

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DLMF:6.6.E4
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    Statements

    Defining formula
    Ein ⁡ ( z ) = ∑ n = 1 ∞ ( - 1 ) n - 1 ⁢ z n n ! ⁢ n , complementary-exponential-integral 𝑧 superscript subscript 𝑛 1 superscript 1 𝑛 1 superscript 𝑧 𝑛 𝑛 𝑛 {\displaystyle{\displaystyle\mathrm{Ein}\left(z\right)=\sum_{n=1}^{\infty}% \frac{(-1)^{n-1}z^{n}}{n!\thinspace n},}}
    0 references
    DLMF id
    DLMF:6.6.E4
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    Symbols used
    complementary exponential integral
    Defining formula
    Ein ⁡ ( z ) complementary-exponential-integral 𝑧 {\displaystyle{\displaystyle\mathrm{Ein}\left(\NVar{z}\right)}}
    xml-id
    C6.S2.E3.m2adec
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